Double-action well-pump.



E. A. H. JACOB.

DOUBLE ACTION WELL PUMP.

APPLICATION FILED ran. 19. I916.

. V by Patented Dec. 5,1916.

ZTAf/ZJMZ Inventor Attorneys rare ERNST AUGUST H. JACOB, OF SAN ANTONIO, TEXAS.

DOUBLE-ACTION WELL-PUMP.

Application filed February 19, 1916.

T all whom it may concern Be it known that I, ERNST AUGUST H.

' JACOB, a citizen of the United States, re-

siding at San Antonio, in the county of Bexar and State of Texas, have invented a new and useful Double-Action 'lVell-Pump, of which the following is a specification.

The present invention appertains to pumps, and relates more particularly to deep well pumps, it being the object of the invention to provide a novel and improved double acting well pump using but a single barrel or cylinder and a single plunger.

The present pump has improved features of construction to enhance the utility and efficiency thereof.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, can be made within the scope of what is claimed, without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawing, wherein Figure 1 is a longitudinal vertical section of the pump, portions being broken away and others being illustrated in elevation, the lower portion of the pump being set at one side. Fig. 2 is a sectional detail taken on the line 22 of Fig. 3. Figs. 3, 1 and 5 are cross sections taken on the respective section lines 3-3, 41, and 55 of Fig. 2

The pump embodies a single vertical barrel or cylinder 1 connected at its upperend by a coupling 2 with the lower end of the well tubing or casing 3 which extends upwardly from the barrel, and the lower end of said barrel 1 is connected by a coupling atwith the upper end of the pipe 5 which leads downwardly from. the barrel deeper into the well.

The coupling 2 at the upper end of the barrel 1 is provided with an inner tapered seat 6, and a vertical sleeve or tubular guide 7 is disposed within the coupling 2 and upper end of the barrel 1 and is provided at its upper end with an enlarged portion or head. 8 e te na y tapered and. fitted tight y Specification of Letters Patent.

Patented Dec. 5, 1916.

Serial No. 79,365.

within the seat 6. The head 8 has vertical openings 9 therethrough for the upward flow of the liquid, and the lower end of the sleeve 7 has a stuiling box 10 containing packing and into which is threaded a gland 11 to compress the packing. An upstanding collar 12 has its lower end threaded or otherwise engaged to the upper end of the sleeve 7 and projects above the head 8, the upper end of said collar 12 having an outturned flange 13 which limits the upward movement of an annular valve 14 which is slidable upon the collar or neck 12. The valve 1 1 is seatable upon the head 8 over the openings or apertures 9 to close them, thereby acting as a check valve for supporting the column of liquid within the casing 3.

A tubular member or pipe section 15 is slidable through the sleeve 7, gland 11 and neck 12, and has attached to its upper end a spider 16 which is in turn attached to the lower end of the plunger rod 17 which is reciprocated in any suitable manner to operate the pump.

The lower coupling a is providedtherein with a tapered seat 18, and a sleeve 19, re sembling the sleeve 7, is disposed within the coupling 4 and upper end of the pipe 5, and is provided at its upper end with an enlarged portion or head 20 exterior-1y tapered to seat tightly within the seat 18. Said head 20 has vertical openings or apertures 21 extending therethrough for the upward passage of the liquid, and the lower end of the sleeve 19 has a stufling box 22 containing packing which iscompressed by a gland 23 threaded into said stuffing boX. An upstanding collar or neck 24; is threadedly or otherwise engaged with the upper end of the sleeve 19 and is provided at its upper end with an outturned flange 25 limiting the upward movement of an annular valve 26 which is slidable upon the neck 24. Said valve 26 seats upon the head 20 to close the apertures 21, to thereby support the column of liquid which is within the barrel 1.

A tubular member or pipe section 27 is sli dable through the neck 24, sleeve 19 and gland 23 to be guided thereby, and has attached to its lower end a valve casing 28. An annular valve seat 29 is threaded or otherwise engaged within the lower end of the valve casing 28 and normally supports a check valve 30 within said casing 28. This check valve 30 permits the liquid to flow upwardly into the tubular member 27, and supports the column of liquid in said member.

A valve casing 31 is attached to the lower end of the tubular member 15, and has threaded within its lower end the upper end of a tubular member 32, which provides a seat for the check valve 33 which is within the casing 31, and which supports the column of liquid which is within the tubular member 15.

The lower end of the tubular member 32 is connected to the upper end of the member 27 by a coupling 34, and said member 32 is provided between its ends with a cylindrical enlargement 35, said member 32 passing through said enlargement and the two being concentric. The member 32 is provided with a partition or diaphragm 36 therein between the ends of the enlargement 35, and said enlargement provides an annular space surrounding the member 32, which is partitioned off by radial partitions 37 integral with the member 32 and periphery of the enlargement 35 extending to the ends of said enlargement. The partitions 37 provide the alternate vertical passages 38 and 39. The upper end of the enlargement 35 has openings 40 registering with the upper ends of the passages 38, and the tubular member 32 is provided between the partition 36 and lower end of the enlargement 35 with openings 41 communicating with the lower ends of said passages 38, whereby the passages 38 communicate with that portion of the member 32 below the partition 36, to thereby communicate with the tubular member 27. The upper ends of the passages 38 communicate with the annular space between the walls of the barrel 1 and the upper portion of the member 32. The lower end of the enlargement 35 has openings 42 registering with the lower ends of the passages 39 whereby they communicate with the annular space between the walls of the barrel 1 and the lower portion of the member 32, and the member 32 is provided between the partition 36 and upper end of the enlargement 35 with openings 43 communicating with the upper ends of the passages 39. Thus the upper portion of the member 32 communicates by way of the passages 39 with the annular space between the walls of the barrel and the lower portion of the member 32.

The upper portion of the member 32 has packing means above the enlargement 35, embodying collars 44 surrounding the upper portion of the member 32 and holding in place leather packing cups 45 which bear against the walls of the barrel. The collars 44 have vertical passages 46 permitting the upward How of liquid therethrough from the passages 38. Similar packing means is provided upon the lower portion of the member 32. Thus, collars 47 are secured upon the lower portion of the member 32 and hold in place leather packing cups 48 which bear against the walls of the barrel, said collars 47 having vertical passages 49 which permit the liquid to flow upwardly through said passages 49 to the passages 39.

The packing cups 45 and 48 project in opposite directions away from the enlargement 35, and those collars 44 and 47 adjacent to the enlargement serve to clamp the corresponding cups against said enlarge ment.

The tubular members 15, 27 and 32 with their allied parts constitute the plunger which is reciprocated for raising the liquid.

The operation of the pump is as follows: Suppose that the plunger is moved downwardly, the liquid within the pipe 5 can flow upwardly through the valve casing 29 into the tubular member 27, and from said tubular member into the lower portion of the tubular member 32, and thence through the openings 41, passages 38, openings 40 and passages 46 into the annular space above the packing cups 45. At the same time that the plunger is moved downwardly, while the annular space above the cups 45 is being filled with liquid,-due to the suction caused by the enlargement or elongation of said space, the liquid within the annular space below the packing cups 48 is forced therefrom, due to the downward movement of the packing cups 48 toward the check valve 26. Thus, the check valve 26 being seated, will cause the liquid which is within the annular space between the check valve 26 and packing cups 48, to pass upwardly through the passages 49, openings 42, passages 39 and openings 43 into the upper portion of the tubular member 32, from which the liquid will flow upwardly through the valve casing 31 into the tubular member 15. From the tubular member 15, the liquid is forced upwardly into the casing 3, and will be raised in said casing. Now, when the plunger is moved upwardly, the check valve 30 supports the liquid which is within the tubular member 27, and the annular space above the packing cups 45, and as said plunger moves upwardly, to raise the packing cups 45, the liquid which is in the space above said cups will be forced upwardly through the apertures 9, the valve 14 unseating. The liquid is thus raised into the pipe 3. At the same time, the packing cups 48 being moved upwardly will elongate the annular space below said cups, thereby creating suction so that the liquid within the pipe 5 will be sucked upwardly through the apertures 21 past the valve 26, said valve 26 seating when the plunger is again moved downweldly, The liquid is thus raised (1 11;:

ing each upward and downward movement of the plunger, whereby a practically continuous flow of liquid is provided.

The various parts can be readily assembled and taken apart.

Having thus described the invention, what is claimed as new is 1. A pump embodying a vertical barrel, a reciprocatory tubular member therein provided between its ends with an enlargement, said member extending through the enlargement and having a partition between the ends of the enlargement, said enlargement having longitudinal partitions therein providing passages and the enlargement having openings at its opposite ends registering with alternate passages, said member having openings between said partition and the ends of the enlargement establishing communication between the alternate passages and the upper and lower portions of said member above and below said partition, one set of passages establishing communication between the lower portion of said member and the space above the enlargement and the other set of passages establishing communication between the upper portion of said member and the space below the enlargement, there being a plurality of passages in each set, said passages being in annular arrangement around said member, check valves for the upper and lower portions of said member, and check valves at the upper and lower ends of the barrel past which the terminals of said member extend.

2. A pump embodying a vertical barrel, a vertical tubular member thereln provided between its ends with an enlargement, said enlargement having openings at its ends, and the enlargement and said member having passages establishing communication between the lower portion of said member and the upper openings and between the upper portion of said member and the lower openings, collars upon said member above and below and adjacent to said enlargement and having passages communicating with said openings, packing cups upon said members extending away from said enlargement, check valves for the upper and lower portions of said member, and check Valves at the upper and lower ends of the barrel past which the terminals of said member extend.

3. A pump embodying a vertical barrel, a vertical tubular member therein provided between its ends with an enlargement, said enlargement having openings in its upper and lower ends and passages establishing communication between the lower portion of said member and the upper openings and between the upper portion of said member and the lower openings, collars fitted upon the member above and below and adjacent to said enlargement and having passages communicating with said openings, packing cups upon said collars and clamped between said collars and enlargement, the packing cups projecting away from the enlargement, check valves for the upper and lower portions of the member, and check valves at the upper and lower ends of the barrel past which the terminals of said member extend.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

ERNST AUGUST H. JACOB.

lVitnesses T. H. NoR'rHwAY, En DoBnowoLsKE, Sr.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Eatents. Washington, D. C. 

